﻿/*  CamHelper (See http://camhelper.codeplex.com/ or https://bitbucket.org/AndiKS/camhelper for more Info)
    Copyright (C) 2011 Andreas Wimmer

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

using System;

namespace CamHelper.Worker
{
    public abstract class BaseWorker
    {
        public event EventHandler<MessageEventArgs> MessageChanged;

        public event EventHandler<ProgressEventArgs> ProgressChanged;

        protected virtual void OnMessageChanged(MessageEventArgs args)
        {
            var handler = MessageChanged;
            if (handler != null)
            {
                handler(this, args);
            }
        }

        protected void SendMessage(string msg)
        {
            OnMessageChanged(new MessageEventArgs(msg));
        }

        protected virtual void OnProgressChanged(ProgressEventArgs args)
        {
            var handler = ProgressChanged;
            if (handler != null)
            {
                handler(this, args);
            }
        }

        protected void SendProgress(int progress)
        {
            OnProgressChanged(new ProgressEventArgs(progress));
        }

        public abstract void Work();
    }
}
